postilion noun. [pɒ'stɪlɪǝn] Also postillion. M16.
[French postillon from Italian postiglione post-boy, from posta POST noun².]
1. A person who rides a post-horse; a courier or swift messenger. Also, a guide or forerunner (for such a person). M16-E18.

2. A person who rides the (leading) nearside horse drawing a coach etc.; esp. one who rides the near horse when one pair only is used and there is no coachman. E17.

[TahlilGaran] English Dictionary ▲